Heater.



PATBNTED SEPT. 4, 1906.

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Wei/e x EATENTED SEPT. 4. 1906.

E. MANFRED.

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APPLICATION FILED NOV. 9. 1905.

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'UNITED sTATEs PATENT OFFICE.

HEATER.

Specification of Letters Patent.

Patented Sept. 4, 1906.

Application filed November 9.1905. Serial No. 286,460.

To all whom, zit may concern:

Be it known that I, PHILIP MANFRED, a subject of the Emperor of Russia,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Heaters, of which thefollowing is a description.

My invention relates to that class of devices used for heating, and hasfor its obj ect the production of an economical, efficient, andlabor-saving heater.

To this end my invention consists in the novel construction,arrangement, and combination of parts herein shown and described, andmore particularly pointed out in the claim.

In the drawings, wherein like reference characters indicate like orcorresponding parts, Figure 1 is a vertical section ofthe preferred formof my device. Fig. 2 is a crosssection taken on line 2 2 of Fig. 1. Fig.3 is a cross-section taken on line 3 3 of Fig. 1. Fig. 4 is across-section taken on line 4 4 of Fig. 1. Fig. 5 is a perspective viewof one form of bathing arrangement. Fig. 6 is a front elevation of thepreferred form of doors.

As is shown in the drawings, the preferred form of heater is made up ofwalls of terracotta, clay, fire-brick, or similar material 2, andprovided with doors 10, 10, and 102, adapted to make the openings to thefire-box or combustion-chamber F and ash-pit A practically air-tightwhen they are closed. To retard the heated gases on their way to thestack or chimney, any preferred form of baffling arrangement may beused. In the drawings, baffle-plates 4 and 5, forming a receiving orheat-storing chamber H, and radially-disposed plates 6, 7, and 8 areshown. The radially-disposed plates allow the heated gases everywhere tocome in contact with the inside wall of the heater and also increase theheat-storing capacity of the same. These plates may be formed of anysuitable heatstoring material or, if prefered, suitable metal plates, asshown at 4 and 5, may be employed with their exposed surfaces protectedby a covering of fire-brick or clay or other heat-storing material 2. Ifpreferred,

plates 6, 7, and S may be similarly protected' or made entirely ofsuitable heat-storing material. It is obvious that partition 4 may bedome-shaped, if desired. By using heatstoring material for thebaffle-plates the heatstoring capacity of the heater is greatlyincreased and a better combustion obtained,

due to the incandescence of the plates, thereby greatly increasing theefficiency of the heater. I/Vhen supporting-plates are used, they arepreferably arranged so as to be protected by the heat-storing material.

Surrounding the body of the heater is preferably placed an outer casing1, made of metal, to which may be secured supportingrings 18 in anypreferred way. Instead of rings 18 several small supporting-shouldersmay be used or the baffling-plates 4 or 5 may be recessed in andsupported by the fire-brick or body of the heater 2.

Any preferred means may be employed to close the openings to thefire-box and ash-pit and practically make the same air-tight, a simpleform of door being shown in Fig 6. Across the door is a bar 11, providedwith a thumb-screw 14 or equivalent means sov arranged that when 14 isscrewed in the door is forced up tight against the frame.

An suitable or preferred form of grate 3 may e used. In the drawings acylindrical form of heater is shown; but it is obvious that the shape isimmaterial and that the legs 17 may be supplied or the heater may restdirectly on the base. Various immaterial changes may be also made in thebaflin arrangement shown. Hence I do not wis to limit myself to theexact form shown.

In the preferred form when there is a fire on the grate the heated gasesand smoke pass from the combustion-chamber F through the storing-chamberH and up over plate 6, down under plate 7, thus coming in contact withthe inside wall of the heater at all points, and thence up and outthrough flue 9 to the stack or chimney. In this way the heated gases areretained in the heater for some time,

thoroughly heating the walls 2 and the baffleplates. When the walls 2are sufficiently hot, the doors may be closed, so as to make theopenings air-tight, and thus the fire checked. The walls of the heaterand the bale-plates inside continue to slowly radiate the heat storedtherein for a considerable length of time, of course the heat beingreplenished to some extent from the checked fire. As is obvious, thereis a less amount of fuel and labor required and a steadier and softerheat given off-that is, the expelled heat is more equably maintained ata constant temperature. I/Vhen the doors are closed and the thumb-screwstightened up, it is obvious that the danger arising from gases escapingthrough the openings is reduced to the minimum. In the drawings twodoors are shown to the ash-pit. If desired, one will be suHicient. Bythe term heat-storing material I wish to be understood as meaningmaterial-such as terra-cotta, firebrick, or clay-suitable for storing upthe heat and operating in the manner described.

What I claim as new, and desire to secure by Letters Patent, is-

In a heater of the kind described, a shell of heat-storing material,said shell having an exterior non-combustible casing, in. combinationwith a grate and two transverse partitions of heat-storing materialhaving openings therethrough offset from one another,

forming a draft-chamber, a combustion` chamber, and a heat-storingchamber, said heat-storing, chamber beingl provided with a series ofradially-disposed baiiie-plates of heat-storing material, saidcombustion-chamber provided with an opening for charging the same and adoor for closing the said open- 'ing and substantially making the sameairtight, a door and opening for regulating the draft to saiddraft-chamber and means for substantially making the same airtight,means for su porting said transverse partitions and baliiingplates, anda flue for con veying` away the waste productions of combustion.

In testimony whereof I have hereunto signed my name in the presence oftwo subscribing witnesses.

PHILIP MANFRED.

Witnesses:v

ROY W. HILL, CHARLES I. COBB.

